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| 4 Open IRT U2400 Circulo Peruano de Ajedrez | Lima | PER | 2023-06-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1256 | 1513 | 3.00 | 4 | -0.02 | 40 | -0.80 | |
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 Bocanegra Reyes, Thiago Stephano | | | 1038 | PER | 1.00 | 1 | 0.05 | 40 | 2.00 | |
| Bendezu Yupanqui, Albert Martin | | | 1678 | PER | 0.00 | 1 | -0.28 | 40 | -11.20 | |
 Salazar Ramirez, Leonardo Gabriel | | | 1113 * | PER | 1.00 | 1 | 0.08 | 40 | 3.20 | |
| Munoz Aguilera, Edward Godfred | | | 1195 | PER | 1.00 | 1 | 0.13 | 40 | 5.20 | |
| * Rating difference of more than 400. Please read more at FIDE Handbook |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) |
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| VI Open IRT Circulo Peruano de Ajedrez sub 2400 | Lima | PER | 2023-07-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1388 | 1513 | 2.00 | 3 | 0.10 | 40 | 4.00 | |
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| Carbajal Sotomayor, Cesar Stefano | | | 1119 | PER | 1.00 | 1 | 0.08 | 40 | 3.20 | |
| Coaquira Gonzales, Oscar Adriano | | | 1236 | PER | 1.00 | 1 | 0.17 | 40 | 6.80 | |
| Reyes Zavaleta, Cristhian Yamil | | | 1810 | PER | 0.00 | 1 | -0.15 | 40 | -6.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) |
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| Campeonato Nacional de Ajedrez Impar 2023 - Sub 13 Absoluto | Lima | PER | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1243 | 1513 | 6.50 | 9 | -0.83 | 40 | -33.20 | |
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| Renteria Padilla, Jorge Roberto | | | 1113 * | PER | 1.00 | 1 | 0.08 | 40 | 3.20 | |
| Rodriguez Zamudio, Zahir Joelson | | | 1169 | PER | 0.50 | 1 | -0.38 | 40 | -15.20 | |
| Gomez Nunez, Fabian Elmer | | | 1195 | PER | 0.50 | 1 | -0.37 | 40 | -14.80 | |
| Valdivia Rojas, Hugo Ismael | | | 1148 | PER | 1.00 | 1 | 0.10 | 40 | 4.00 | |
| Villaverde Salas, Gonzalo Matias | | | 1238 | PER | 1.00 | 1 | 0.17 | 40 | 6.80 | |
| Gilian Solano, Justin Matias | | | 1319 | PER | 1.00 | 1 | 0.25 | 40 | 10.00 | |
| Solorzano Roncal, Ezzio Jose | | | 1376 | PER | 0.50 | 1 | -0.18 | 40 | -7.20 | |
| Levano Loayza, Adriano Jaffet | | | 1381 | PER | 0.00 | 1 | -0.68 | 40 | -27.20 | |
| Aching Rengifo, Cesar Alejandro | | | 1247 | PER | 1.00 | 1 | 0.18 | 40 | 7.20 | |
| * Rating difference of more than 400. Please read more at FIDE Handbook |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) |
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